I purchased Samsung 65 QN65Q70 on 12/27. The internet connection is registering on the TV test but says it can't connect to the internet. If I turn off the TV wait then turn it back on it will sometimes re connect and I can watch the show, for 15-25min then it will do it again. TV updates current, internet works on all other devices including my sons TV at the other end of the house. After reading other customer issues it seems that this could be a defect, or can you assist with a solution?
Here is a link of a few troubleshooting steps that maybe be able to resolve your symptoms.